Supporting-column for wharves, piers, &amp;c.



SG. HINDES. SUPPORTING COLUMN FOR WHARVES, PIERS, 50. APPLICATION FILED PEB. 1s, 1909.

Paenied Mar. ,29 NEG.

"SWIM Www STE'LSDN' G. '-I-INDES, OF SAN FRANCISCO, CALIFORNIA.

SUEPORTNG-CLUWIN FOR WHARVES, PIELES, &c.

speoiilcaton of Letters Patent.

-aipploation filed February 3.3, 1963. .Serial No. 477,849.

To all 1l/fiom it muy concern;

Be it known that l, tlifs'rson El. Elmore, a citizen of the United aus, residing in the city and county of San Francisco and 'State of California, have invented certain new and useful. improvements in Supporting- Coluinns for lll/vharves, Piers, t-c., of which the following is a specification.

The present invention relates to the oonstruc'tion of whaiyes3 landings, piers and protecting the supporting coiui'nns thereof; the objeot beine to reinforce and proteet 'the submerged surface of the supporting col un'ins"by composite covering wall or shell.

To comprehend the invention, reference should be had to the accompanying sheet of drawings, whereinigu-re l a broken View in elevation of a supporting column with the outer shell or casing applied thereto, the said shell or casl ing being partly sectioned to illustrate therein the composite. covering 'for the supporting column. and 3 plan `Jiews of the casing ap'ilied to varying shaped supporting columns. .llig fl is a plan View disclosing the bottoni of the casing applied to the supporting column illustrated in 2 of the drawings.

the drawings the numeral l is used to indicate a suitable supporting column of uniform cross section throughout the entire length thereof, which may be of any form, such asa sawed timber, solidround or square steel, steel pipe, a 'lrail or an -beam. This supporting column is first driven into the hard bottom, and the exposed submerged surface thereof is then protected against the action of the Water by means of the oomposite covering Q, held in position by the outer casing 3, which casing is slidable on the supporting column and descends lthereon during the process of forming the said composite covering inclosed therebya lilhe loottom it of the casing 3 1s closed, except as to the central opening therein through which extends the supporting column, which opening conforms in shape to the cross section of the said supporting column over which the bottom Il Works and makes a close or running joint therewith. The casing or outer shell 3 is preferably of a length slightly greater than the distance from the bed 5 into which it is driven 'to the upper end of the supporting column l, and the diameter of the casing or shell is such. as to leave an annular space between the inner wall therel l l l l l of and the 'face of the said column equal to the thickness of 'the protecting wall 'to 'be placed around :the -Vexposed surface Ithereof.

ln 'the face of the outer casing or shell 3 is formed vertical series of spaced feed or 'stokinggl openings 6, which are arranged a distance of about ten feet apart, more or.

These openings are closed from the inside of the casing by means of the cover plates 7, which are held in position by the pressure of the body of material con'iposing` the composite covering 2.

.in `arryingout the coating of the surface of the driven supporting column 1, the cas ing or shell i3 tilted over the exposed end thereof and permitted to slip downwardly until the first `feed or the lowerinost stoking opening (3 is positioned relative to the sup-v port 8 to perinitof the Workmen feeding therethrough into the casing the concrete or material for forming the composito covering :2 for the col nnn to be protected, the casing gradually descending until the second feed or stokino' opening is positioned to receive therethrough the lreinforci11g-material, which material as fed or delivered into the vcasing 3 spreads out and packs itselfv around the column l, which constitutes an inner core. The casing is held in position and prevented from moving downwardly too rapidly by means ofthe cables 9, which engage with the lugs l0 projecting from the lower end portion of the casing, F ig. l of the drawings. As the first feed or stoking opening passes below the platform 8 on which the workmen -are stationed, the same is closed by. means of the plate 7, which may consist of a thin sheet of metal, the same being slightly largoL than the opening and held against the inner surface of the casing by the pressure of the material thereagainst, each feed or stokin opening being closed as the same is carried beyond the feed station for the material to be delivered into the casing. I Where the supporting columns are of tapering form, such as the, ordinary Wooden pile, it is impossible at times to properly protect the exposed surface thereof, due to the fact that as the cross sections vary throughout the length thereof, it is required that the opening in the bottom of the casing conform to the largestv cross section of the said supporting column, hence leaving a loose. joint at reduced cross sections. 'linasmuch as it frequently happens that the Work of sinking the outer casing is delayed rateiitea Mar., 29, 1910.

for a considerable time, the concrete filling begins to harden or set at the point where the movement of the casing is arrested. The result is, Where the supporting;A column is of tapering` form7 that :is the easing is forced downward after ren'uiining stutitinury Yfor ii time, the set composite covering remains u distance away from the surtiiee ot` the eohnnn where the cross sections :ire les4 thun the cross section ut the point where the tloivnA Ward movement of the casing wos urresteil`v i an exposed surface being;l thus` left. B v eniploying supporting columns ol' n unitorin cross section throughout the entire length thereof und oroviiling un opening in the the -oiiinin to the betl in which the lutter is rlri'ven. :i series oi.' sitoling olienzues yFrpneerl troin one unother lone'ituiliiuill; ot i the cosine', :nul u fillingintt'rrposetl iietvveen the shell :nul the Supporting rohnnn,

bottom of thc casing' conforming to 'the v shape of the Supporting eohnnn, this detect g is obvlatecl, for it is immaterial :it what point the movement ot' the casing is suspenth ed, inasmuch as when its movement is eon- 5 ingr hurling' ut its lower end :i closing cup tinued the composite covering will eoiilorin to any cross section of the column below the point at which the inoreinent oi theeusiner was arrested.

Having thus described the invention whnt is claimed as new :intl (lesiretl to be protected by Letters Patent isz-- l. In a wharf or pier construction the i combination with :i driven supporiiinr' column, of uiiiforin cross section throniehout the length thereof, un outer shell or ci fitted thereon to inelose the suine, sont cosine having 2i closed bottoni With u central openY ing therein shupetl to eont'orin to the cross section ot' the supporting column to inane L 3. ln :i wharf or pier construction. the eonihinution with :i driven supporting column of uniform crees section throughout the length thereof, un outer shell o r fusing titteil thereon to ii'n'lose the sinne` suitl eusA nieiiiherv whieli suitl enp nieniher hns ou opening eoi'respontiing to the unil'orin er z section olt the supportingA column until suitl enp ineniber being otherwise i'ontiniuius` unil f-losetL unil :in inner eoinposite filling interposeil between the cuisinel :intl the supporting eohiinii.

ln t'stiinon}T whereot l have signed my nnnie to this specili-riirion in the presence of two subscribing" witneSFes.

"itnesses:

N. iii Alcune, D. B. Rioni-mins. 

